Yamaha YZ250F - 2018 Specifications and Reviews

The 2018 Yamaha YZ250F is a lightweight four-stroke motocross bike designed for intermediate to advanced amateur riders seeking reliable performance and excellent handling. Known for its agile chassis and compact dimensions, this bike excels in tight technical terrain and delivers consistent power delivery. The 231-pound machine combines aggressive styling with user-friendly characteristics that make it competitive in regional racing and recreational riding.

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General information

CategoryCross / motocross
Year2018
ModelYamaha YZ250F
 
 

Engine and Transmission Specifications

ClutchMultiplate wet clutch
Transmission type,final driveChain
Gearbox5-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionTCI: Transistor Controlled Ignition
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Keihin® fuel injection, 44mm
Valves per cylinder4
Bore x Stroke77.0 x 53.6 mm (3.0 x 2.1 inches)
Compression13.5:1
Engine detailsTitanium-valves
Engine typeSingle cylinder, four-stroke

Brakes, suspension, Frame and wheels

WheelsBridgestone® M403A tyres
Rear brakes diameter245 mm (9.6 inches)
Rear brakesSingle disc. Hydraulic.
Front brakes diameter250 mm (9.8 inches)
Front brakesSingle disc. Hydraulic.
Rear tyre100/90-19
Front tyre80/100-21
Rear wheel travel315 mm (12.4 inches)
Rear SuspensionKYB fully adjustable single shock
Front wheel travel310 mm (12.2 inches)
Front SuspensionKYB speed-Sensitive System, inverted fork: fully adjustable
Rake (fork angle)28.0°
Frame typeBilateral beam aluminum frame

Physical measures and capacities

Oil capacity0.90 litres (0.06 quarts)
Fuel capacity7.50 litres (1.98 gallons)
Wheelbase1,476 mm (58.1 inches)
Ground clearance325 mm (12.8 inches)
Overall width826 mm (32.5 inches)
Overall length2,164 mm (85.2 inches)
Overall height1,280 mm (50.4 inches)
Seat height965 mm (38.0 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc104.8 kg (231.0 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Factory warranty30 Day Limited Factory Warranty
StarterKick
Color optionsTeam Yamaha Blue, White

Performance Profile & Rider Fit

Best For

Track95%
City10%
Cornering88%
Daily Riding10%
Touring12%
Passenger5%

Rider Profile

Best ForBest suited to intermediate through expert riders who already have off-road or motocross fundamentals, as this is a purpose-built race bike, not a beginner machine.
PurposeDesigned purely for motocross and off-road track competition, prioritizing light weight, sharp handling, and high-rev four-stroke power delivery over any road-going comfort or practicality.
Rider FitTall seat height, minimal suspension give at rest, and a firm, aggressive riding stance demand good rider fitness, strength, and confidence standing on the pegs.
CharacterA raw, focused competition tool that rewards active, aggressive riding input with explosive acceleration out of corners and razor-sharp direction changes.
Not Ideal ForNot for commuters, passengers, long-distance touring riders, or anyone seeking a comfortable, low-maintenance street-legal machine.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2018 Yamaha YZ250F Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 965mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2018 Yamaha YZ250F, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2018 Yamaha YZ250F is a top-of-the-line motocross bike that delivers impressive performance and handling. With its 250cc liquid-cooled four-stroke engine, this motorcycle offers plenty of power for tackling any terrain. The YZ250F also features a lightweight aluminum frame and adjustable suspension, allowing riders to customize their ride for optimal comfort and control. Whether you're a seasoned pro or a weekend warrior, the Yamaha YZ250F has the power and agility to take your off-road adventures to the next level. Overall, the 2018 Yamaha YZ250F is a standout in the motocross world, with its powerful engine, responsive handling, and high-quality construction. Whether you're tearing up the track or exploring off-road trails, this bike offers the performance and durability that riders demand. Plus, with its sleek design and aggressive styling, the YZ250F is sure to turn heads wherever you go. If you're in the market for a top-notch motocross bike, the 2018 Yamaha YZ250F is definitely worth a closer look.
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